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Ultra-high-performance lamp. An ultra-high-performance lamp, often known by the Philips trademark UHP, is a high-pressure mercury arc lamp. [1] These were originally known as ultra-high-pressure lamps, [2] [3] because the internal pressure can rise to as much as 200 atmospheres when the lamp reaches its operating temperature.
[100] [101] [102] Japan's Ministry of Internal Affairs and Communications decided on this move to stimulate demand for 4K Ultra HD TVs. [100] [101] [102] On February 21, 2013, Sony announced that the PlayStation 4 would support 4K resolution output for photos and videos but wouldn't render games at that resolution. [103] [104]